Add debug configurations for VSCode

.vscode/launch.json

@@ -0,0 +1,37 @@
+{
+	// Use IntelliSense to learn about possible attributes.
+	// Hover to view descriptions of existing attributes.
+	// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+	"version": "0.2.0",
+	"configurations": [
+		{
+			"type": "cppdbg",
+			"preLaunchTask": "build",
+			"request": "launch",
+			"program": "${workspaceRoot}/build/unittest",
+			"name": "unittest (C/C++ extension)",
+			"cwd": "${workspaceRoot}/build",
+			"setupCommands": [
+				{
+					"text": "-enable-pretty-printing",
+					"description": "enable pretty printing",
+					"ignoreFailures": true
+				},
+			]
+		},
+		{
+			"type": "lldb-mi",
+			"request": "launch",
+			"name": "unittest (CodeLLDB extension)",
+			"target": "./build/unittest",
+			"cwd": "${workspaceRoot}"
+		},
+		{
+			"name": "unittest (Native Debug extension)",
+			"type": "gdb",
+			"request": "launch",
+			"target": "./build/unittest",
+			"cwd": "${workspaceRoot}"
+		}
+	]
+}